1N5523D

Overview

The Microchip Technology 1N5523D is a single silicon Zener diode with a nominal voltage of 5.1 V and a maximum power dissipation of 500 mW. It features a 5% voltage tolerance, a test current of 5 mA, and a maximum reverse leakage current of 2 µA at 2.5 V. The device operates within a temperature range of -65 °C to +175 °C and utilizes a DO-35 axial through-hole package.

Feature Summary

• Metallurgically bonded construction for enhanced reliability
• Low reverse leakage characteristics suitable for precision applications
• Double plug design structure

Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm exact tolerance and packaging specifications. Ensure compatibility with MIL-PRF-19500/437 requirements if applicable. Confirm RoHS compliance status and manufacturing origin prior to procurement.

Selection Notes

Select this component for applications requiring low noise and high stability in harsh environments. The wide operating temperature range supports demanding industrial conditions. Verify that the 500 mW power rating meets circuit thermal constraints.

Part Context

This part belongs to the 1N5518B through 1N5546B series of low noise Zener diodes manufactured by Microchip Technology. The series offers various voltage options in both glass axial and MELF packages, designed for high-reliability military and aerospace applications.

Replacement Considerations

Equivalent parts include 1N5523B and 1N5523C from Microchip Technology. Cross-reference datasheets to ensure identical voltage tolerance and package dimensions before substitution.